The Beave
Georgetown TX USA
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Apparently California is planning to stop sales of large screen plasma and LED TV's until they meet strict new standards as they consume much more power.
"The average plasma TV uses more than three times as much energy as an old cathode-ray tube set. Liquid-crystal display, or LCD, TVs use about 43 percent more energy than tube sets, according to Pacific Gas & Electric Co., the state's biggest utility. LCDs now account for about 90 percent of the 4 million TVs sold in California each year." (Fox News)
Of course the average plasma/LCD is much larger than the average tube set.
I had been under the impression that a new flat screen TV would require less power than my existing old CRT unit when dry camping.
Has anyone checked the power consumption of your old tube set against your new plasma/CRT?
The Beave
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2oldman
Indio CA
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I wouldn't care. I wouldn't watch a CRT anyway.
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bkd148
Spanaway, WA.
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My 27in. Zenith CRT takes 117 watts and my 40in. Sony LCD takes 180 watts. You do do the math. I think if the 27in. CRT was 40in. it would be darn close. Marty
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foosh1
Annapolis MD
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It is a function of screen size. For screens of equal size, LCD < CRT < Plasma in terms of power consumption.
Of course, there are no really large CRTs, so the large screens of today tend to consume more power than the old and relatively small CRT sets we watched "back in the day."
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kirkj55
Nor Cal
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foosh1 wrote:It is a function of screen size. For screens of equal size, LCD < CRT < Plasma in terms of power consumption.
Of course, there are no really large CRTs, so the large screens of today tend to consume more power than the old and relatively small CRT sets we watched "back in the day."
I think mine is the biggest, 40 inch Mitsubishi CRT, very heavy to pick up. Back of TV says 260 watts
* This post was
edited 11/20/09 01:01pm by kirkj55 *
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JohnnyT
Goshen New York
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Moved from class A forum
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4*phun*2
Canada
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My 50" Panasonic plasma TV heats our family room quite nicely. The vents on the back are warm to the touch. I would never go back CRT.
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TechWriter
Green Bay, WI USA
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The Beave wrote:I had been under the impression that a new flat screen TV would require less power than my existing old CRT unit when dry camping.
I replaced a 19-in crt with a 32-in LCD & the LCD required more power.
If power consumption is a concern, check the differences between brands. For example, found out that my Toshibas use much more power than other comparable brands.
Tom
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billyboy
md
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my 36" crt draws 101 watts, the 42" lcd i bought for my mother in law draws 220 watts
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bananadanna
Cambridge, MA
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Many of the large lcd and plasma sets being sold now consume as much electricity as a refrigerator. Maybe twice the watts of the smaller crt it may have replaced. A bad trend.
There was widely acknowledged success with raising efficiency standards for air conditioners and refrigerators. A lot of mfrs yelled and screamed that people would not pay an extra $40 for improvements that used $20/yr less power---even though anyone doing the math could see the payoff was pretty good.
You can raise lcd set efficiency by using led backlights instead of the more wasteful fluorescent tubes. The leds gives better blacks as well as use less power---but they cost a bit more presently.
I think the first phase of CA's standards are pretty feasible now. The tougher second phase look harder to accomplish.
Judging from the price of a kw-hr in CA, I'd say the consumer there will get a pretty fast payback on the first phase without requiring any breakthrough technology.
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